Every nerve in his body seemed to tauten: he pulled out his wand, moved into the shadows beside the decapitated elf heads, and waited.(哈利全身的每根神经都紧张起来,他拔出魔杖,躲进那些小精灵脑袋旁边的阴影里等待着。)
There are exercises that tauten facial muscles.(有些练习可以让面部肌肉紧绷起来。)
I suddenly felt the fishing line tauten.(我突然感到鱼竿的绳子拉紧了。)